JP3004808B2 - Synchronizer ring and its manufacturing method - Google Patents

Synchronizer ring and its manufacturing method

Info

Publication number
JP3004808B2
JP3004808B2 JP4128723A JP12872392A JP3004808B2 JP 3004808 B2 JP3004808 B2 JP 3004808B2 JP 4128723 A JP4128723 A JP 4128723A JP 12872392 A JP12872392 A JP 12872392A JP 3004808 B2 JP3004808 B2 JP 3004808B2
Authority
JP
Japan
Prior art keywords
synchronizer ring
conical
gear
conical surface
sprayed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP4128723A
Other languages
Japanese (ja)
Other versions
JPH05320861A (en
Inventor
茂樹 山田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aisan Industry Co Ltd
Original Assignee
Aisan Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aisan Industry Co Ltd filed Critical Aisan Industry Co Ltd
Priority to JP4128723A priority Critical patent/JP3004808B2/en
Priority to US08/047,194 priority patent/US5407043A/en
Publication of JPH05320861A publication Critical patent/JPH05320861A/en
Application granted granted Critical
Publication of JP3004808B2 publication Critical patent/JP3004808B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/02—Arrangements for synchronisation, also for power-operated clutches
    • F16D23/025—Synchro rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D23/00—Details of mechanically-actuated clutches not specific for one distinct type
    • F16D23/02—Arrangements for synchronisation, also for power-operated clutches
    • F16D23/04—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch
    • F16D23/06—Arrangements for synchronisation, also for power-operated clutches with an additional friction clutch and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2250/00—Manufacturing; Assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/12—Discs; Drums for disc brakes
    • F16D65/127—Discs; Drums for disc brakes characterised by properties of the disc surface; Discs lined with friction material

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は自動車の歯車変速機のシ
ンクロメッシュ機構に用いるシンクロナイザリングとそ
の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synchronizer ring used for a synchromesh mechanism of a gear transmission of an automobile and a method of manufacturing the same.

【０００２】[0002]

【従来の技術】図６と図７に示すように歯車減速機のシ
ンクロメッシュ機構は、同期する軸のクラッチハブスリ
ーブの回転数と同期される軸により駆動されるカウンタ
ギアと噛合っているギアの回転数を等速（同期）させて
変速を行なうためのもので一般に次のようになってい
る。2. Description of the Related Art As shown in FIGS. 6 and 7, a synchromesh mechanism of a gear reducer has a gear meshing with a counter gear driven by a shaft synchronized with the rotation speed of a clutch hub sleeve of a synchronized shaft. The speed is changed at the same speed (synchronous), and the speed is generally changed as follows.

【０００３】１はクラッチハブスリーブ、２はクラッチ
ハブ、３はシンクロナイザリング、４はシフティングキ
ー、５はキースプリングであって、クラッチハブ２は同
期する軸６にスプライン嵌合されていていっしょに回転
し、更にクラッチハブ２の外周にはクラッチハブスリー
ブ１がスプライン嵌合されている。[0003] 1 is a clutch hub sleeve, 2 is a clutch hub, 3 is a synchronizer ring, 4 is a shifting key, 5 is a key spring, and the clutch hub 2 is spline-fitted to a shaft 6 which is synchronized. The clutch hub 2 rotates, and a clutch hub sleeve 1 is spline-fitted to the outer periphery of the clutch hub 2.

【０００４】歯車の変速を行なう場合には、図示されて
ないチェンジレバーを中立の位置から変速しようという
方向へ軽くシフト操作すると、図示されてないフォーク
によってクラッチハブスリーブ１といっしょにシフティ
ングキー４も移動し、該シフティングキー４の端がシン
クロナイザリング３の肩部を押して、他の噛合うピース
ギア７の円錐面７ａにシンクロナイザリング３の円錐面
３ａを押し付ける。In order to shift gears, when a shift lever (not shown) is lightly shifted from a neutral position in a direction of shifting gears, a fork (not shown) shifts the shift key 4 together with the clutch hub sleeve 1 together with the clutch hub sleeve 1. The end of the shifting key 4 pushes the shoulder of the synchronizer ring 3 and presses the conical surface 3a of the synchronizer ring 3 against the conical surface 7a of another meshing piece gear 7.

【０００５】そうすると、両円錐面３ａと７ａの軽い摩
擦力によってシンクロナイザリング３はピースギア７に
引きずられて回転し、ピースギア７は増速又は減速し始
める（同期作用を始める）。さらにクラッチハブスリー
ブ１に力を働かせるとクラッチハブスリーブ１はキース
プリング５の張力に打勝ってシンクロナイザリング３を
沈めながらさらに移動し、シンクロナイザリング３をピ
ースギア７の円錐面７ａに強く押し付け、摩擦力を増加
させてクラッチハブスリーブ１の回転とピースギア７の
回転とを同期させてクラッチハブスリーブ１をピースギ
ア７に噛み合わせて変速させるものである。Then, the synchronizer ring 3 is dragged by the piece gear 7 and rotated by the light frictional force between the two conical surfaces 3a and 7a, and the piece gear 7 starts increasing or decelerating (synchronizing action starts). When a force is further applied to the clutch hub sleeve 1, the clutch hub sleeve 1 overcomes the tension of the key spring 5 and moves further while sinking the synchronizer ring 3, and strongly presses the synchronizer ring 3 against the conical surface 7 a of the piece gear 7, and the friction force And the rotation of the clutch hub sleeve 1 and the rotation of the piece gear 7 are synchronized so that the clutch hub sleeve 1 is engaged with the piece gear 7 to change the speed.

【０００６】シンクロナイザリング３の円錐面３ａは、
ピースギア７の円錐面７ａとの間で適当な摩擦力が得ら
れるように、円錐面３ａに潤滑油を排斥するためにねじ
切りされ、そのねじ部にモリブデンを溶射コーティング
した後で、ねじの頂部を研摩しており、こうすることで
ねじ部により潤滑油を円錐面７ａから拭って摩擦力を高
めつつ耐久性を向上させようとしていた（例えば、実開
昭５５−７４１４号公報の第３図参照）。The conical surface 3a of the synchronizer ring 3
In order to obtain an appropriate frictional force between the conical surface 7a of the piece gear 7 and the conical surface 3a, the conical surface 3a is threaded to repel lubricating oil, and the screw portion is spray-coated with molybdenum. In this way, the lubricating oil is wiped from the conical surface 7a by the screw portion to increase the frictional force and to improve the durability (see FIG. 3 of Japanese Utility Model Laid-Open No. 55-7414, for example). ).

【０００７】[0007]

【発明が解決しようとする課題】そして、研摩加工をし
ないままであると、溶射面の凹凸が大きく、凹凸の突起
部が先ずギアの円錐面に当たって脱落又は変形して、シ
ンクロナイザリングの内径が大きくなる。こうなると、
ギアの端面とシンクロナイザリングの大径側端面との隙
間Ｇ（図７参照）が小さくなって、シンクロナイザリン
グ３の円錐３ａとピースギア７の円錐面７ａとの摩擦力
が十分になる前に、シンクロナイザリングの大径側端面
３ｂがピースギア７の端面７ｂと接して、シンクロ（同
期）作用ができなくなり、いわゆるギア鳴り等の不快な
現象が発生する。If the polishing is not performed, the unevenness of the sprayed surface is large, and the projections of the unevenness first come into contact with the conical surface of the gear and drop or deform, so that the inner diameter of the synchronizer ring becomes large. Become. This happens when,
Before the gap G (see FIG. 7) between the end face of the gear and the large-diameter end face of the synchronizer ring becomes smaller and the frictional force between the cone 3a of the synchronizer ring 3 and the conical face 7a of the piece gear 7 becomes sufficient, the synchronizer becomes sufficient. The large-diameter end face 3b of the ring comes into contact with the end face 7b of the piece gear 7, so that a synchronizing (synchronous) operation cannot be performed, and an unpleasant phenomenon such as so-called gear noise occurs.

【０００８】そこで本発明は、シンクロナイザリングに
耐摩耗材を溶射コーティングしたあと、研摩加工に代わ
る簡単な加工で、円錐面３ａの表面仕上げができる製造
方法とシンクロナイザリングを提供し、シンクロナイザ
リングのコストの低減と耐久性の向上を図ることを目的
とする。Accordingly, the present invention provides a manufacturing method and a synchronizer ring in which the surface of the conical surface 3a can be finished by a simple processing instead of polishing after spray coating a wear-resistant material on the synchronizer ring, thereby reducing the cost of the synchronizer ring. The purpose is to reduce and improve durability.

【０００９】[0009]

【課題を解決するための手段】上記目的を達成するため
に、本発明のシンクロナイザリングの製造方法は、シン
クロナイザリングの円錐面と、変速ギアの円錐面とが接
触して同期作用する歯車変速機のシンクロナイザリング
の製造工程において、機械加工されたシンクロナイザリ
ング本体（３）の円錐面（３ａ）に、耐摩耗材を溶射し
た後、所定の面圧が溶射面にかかるように所定の開き角
の円錐体治具（９）を押し付けて回動することにより、
溶射膜表面の突起高さを均一にすることを特徴とする。In order to achieve the above object, a method of manufacturing a synchronizer ring according to the present invention is directed to a gear transmission in which a conical surface of a synchronizer ring and a conical surface of a transmission gear contact and synchronize. In the manufacturing process of the synchronizer ring, after abrasion-resistant material is sprayed on the conical surface (3a) of the machined synchronizer ring body (3), a cone having a predetermined opening angle is applied so that a predetermined surface pressure is applied to the sprayed surface. By pressing and rotating the body jig (9),
The height of the projections on the surface of the sprayed film is made uniform.

【００１０】円錐体治具（９）を押し付けて回動する角
度を４５°〜５９０°にすると効果的である。又、本発
明のシンクロナイザリングは、シンクロナイザリング本
体（３）の円錐面（３ａ）に耐摩耗材を溶射し、かつ円
錐体治具（９）を押し付け回動した溶射面の面粗度が、
十点平均粗さで２２〜６７μｍＲｚでかつプラトー率が
１％〜４０％間の表面粗さが３５μｍである。It is effective to set the angle of rotation by pressing the conical jig (9) to 45 ° to 590 °. Further, in the synchronizer ring of the present invention, the conical surface (3a) of the synchronizer ring main body (3) is sprayed with a wear-resistant material, and the surface roughness of the sprayed surface rotated by pressing the conical jig (9) is as follows.
10-point average roughness of 22 to 67 μm Rz and plateau rate
The surface roughness between 1% and 40% is 35 μm.

【００１１】[0011]

【実施例】図１（ａ）は、機械加工直後のシンクロナイ
ザリング３を示し、高力黄銅を材料としているが、一般
に銅、鉄、アルミ合金などの母材を用いる。通常、ビレ
ットから熱間鍛造した後切削加工で、図の形状に仕上げ
られるが、鍛造成形のほか、焼結成形などで成形し、焼
結後、切削加工して仕上げてもよい。円錐面３ａは、開
き角θが１４°、片側テーパ角がその半分の７°に作ら
れている。３ｃは円錐面３ａに等間隔に設けられた２１
本の縦溝で、その幅Ｂは４ｍｍ、円錐面３ａの平均径は
φ８９．６である。FIG. 1A shows a synchronizer ring 3 immediately after machining, which is made of high-strength brass, but generally uses a base material such as copper, iron or an aluminum alloy. Normally, the shape shown in the figure is finished by cutting after hot forging from a billet. However, in addition to forging, molding may be performed by sintering and the like, followed by cutting after sintering. The conical surface 3a has an opening angle θ of 14 ° and a one-sided taper angle of 7 °, which is half of that. 3c are 21 provided at equal intervals on the conical surface 3a.
The vertical groove has a width B of 4 mm and an average diameter of the conical surface 3a of φ89.6.

【００１２】次に図２（ｂ）のようにシンクロナイザリ
ング３の円錐面３ａに向けて、プラズマ溶射トーチ８か
らＡｌ−１５Ｓｉ＋５０Ｍｏ合金を溶射して、０．１〜
０．２ｍｍの膜厚の溶射膜を成形した。溶射装置はミラ
ー社ＳＧ−１００を用いた。Next, as shown in FIG. 2 (b), an Al-15Si + 50Mo alloy is sprayed from the plasma spraying torch 8 toward the conical surface 3a of the synchronizer ring 3 so as to be 0.1 to 0.1 mm.
A sprayed film having a thickness of 0.2 mm was formed. The spraying apparatus used was SG-100 manufactured by Miller.

【００１３】溶射後の円錐面（３ａ）の面粗度は十点平
均粗さで７２μｍＲｚ、プラトー率が１％〜４０％間の
表面粗さが４６μｍであった。このときの溶射面の粗さ
を図２の曲線に示す。ここで、プラトー率とは、例えば
図８に示すような断面曲線の最も高い山頂Ｓを基準０と
して、基準から任意のカッティングレベルａで断面曲線
を切断したときの実体部分の負荷長さΣｌｎを基準長さ
Ｌで除したもので、百分率で表す。すなわち、プラトー
率：｛（Σｌｎ＝ｌ 1 ＋ｌ 2 ＋…＋ｌｎ）／Ｌ｝×１０
０（％）で表され、例えば図８のカッティングレベルａ
でのプラトー率は４０％である。 The surface roughness of the conical surface (3a) after thermal spraying is 72 μm Rz in ten-point average roughness, and the plateau ratio is between 1% and 40%.
The surface roughness was 46 μm. The roughness of the sprayed surface at this time is shown by the curve in FIG. Here, the plateau rate is, for example,
The highest peak S of the sectional curve as shown in FIG.
And a cross-sectional curve at an arbitrary cutting level a from the standard
The reference length is the load length Σln of the substantial part when cutting
Divided by L and expressed as a percentage. That is, the plateau
Rate: {({ln = l 1 + l 2 + ... + ln) / L} × 10
0 (%), for example, the cutting level a in FIG.
Is 40%.

【００１４】次に、図１（ｃ）に示すように開き角１４
°の円錐面を備えた円錐体治具９の円錐面９ａを、溶射
膜をその表面に形成した円錐面３ａに押し付け、２７０
°回動して円錐面３ａの表面の突起高さを均一にした。
このとき円錐面３ａにかかる実質的な面圧は、４〜４０
Ｎ／ｍｍ2 の範囲にすると好結果が得られた。これより
大きくすると、シンクロナイザリングの変形及び溶射膜
表面の過度なつぶれが発生する。Next, as shown in FIG.
The conical surface 9a of the conical jig 9 having the conical surface of ° is pressed against the conical surface 3a on which the thermal sprayed film is formed.
By turning, the projection height on the surface of the conical surface 3a was made uniform.
At this time, the substantial surface pressure applied to the conical surface 3a is 4 to 40.
Good results were obtained in the range of N / mm 2 . If it is larger than this, deformation of the synchronizer ring and excessive collapse of the sprayed film surface will occur.

【００１５】円錐体治具９を押し付け回動するときの実
質的な面圧を１５Ｎ／ｍｍ2 にしたときの溶射面の粗さ
曲線を図３に示す。図２におけるとがった突起１０の先
端が図３で符号１１で示すようにつぶれ、突起高さが均
一になっていることが判る。FIG. 3 shows a roughness curve of the sprayed surface when the substantial surface pressure when pressing and rotating the conical jig 9 is set to 15 N / mm 2 . It can be seen that the tip of the pointed protrusion 10 in FIG. 2 is crushed as indicated by reference numeral 11 in FIG. 3 and the protrusion height is uniform.

【００１６】なお、円錐体治具９は、ＳＫ５を切削加工
した後焼入れ研摩加工したものを用いた。又、面圧は、
円錐体治具の押付力をＦ、開き角をθ、接触面積を平均
径×（円錐面３ａの長さ）−（縦溝３ｃの総面積）とし
た場合、 面圧＝Ｆ／｛（接触面積）×Ｓｉｎ（θ／２）｝ であらわされる。The conical jig 9 was prepared by cutting SK5 and then hardening and polishing. The surface pressure is
When the pressing force of the conical jig is F, the opening angle is θ, and the contact area is average diameter × (length of conical surface 3a) − (total area of vertical groove 3c), surface pressure = F / ｛(contact Area) × Sin (θ / 2)｝.

【００１７】次の表１は、円錐体治具９の面圧を１５Ｎ
／ｍｍ2 に固定し、円錐体治具９を回動する角度を変え
て、溶射面の十点平均精度Ｒｚとプラトー率がどのよう
に変化するかを測定したデータである。The following Table 1 shows that the surface pressure of the conical jig 9 is 15N.
/ Mm 2 , data obtained by measuring how the ten-point average accuracy Rz and the plateau ratio of the sprayed surface change by changing the angle at which the cone jig 9 is rotated.

【００１８】[0018]

【表１】 [Table 1]

【００１９】表１の供試品１〜８を加速耐久試験にかけ
たところ、供試品２〜６は耐久回数の目標５０００回を
クリアーしたが、円錐体治具９の回動角度が一定以下と
一定以上では耐久寿命が短かく実用的でないことが判っ
た。その結果を図４に示すが、この結果から、円錐体治
具９の回動角は４５°〜５９０°が望ましい。又、加工
後の溶射面粗度は表１から十点平均粗度が２２〜６７μ
ｍＲｚが良い。When the specimens 1 to 8 in Table 1 were subjected to an accelerated durability test, the specimens 2 to 6 cleared the target number of durability of 5000 times, but the rotation angle of the conical jig 9 was less than a certain value. It was found that the durable life was short and impractical above a certain level. The result is shown in FIG. 4. From this result, it is desirable that the rotation angle of the conical jig 9 is 45 ° to 590 °. Further, from Table 1, the ten-point average roughness of the sprayed surface after processing is 22 to 67 μm.
mRz is good.

【００２０】なお、円錐体を回動する角度は、溶射条件
の変動によっては、溶射後の面粗度が大きくなるので、
３６０°以下が安定してよい。また、図１（ｃ）の工程
で、押付面圧を、０、５、２０、３５、５０、７０Ｎ／
ｍｍ2 と変化させて製作したシンクロナイザリングを、
歯車変速機に組み込んで耐久試験を行なった結果、押圧
面圧零の場合、つまり円錐体７を押し付けなかった場合
は、ギアとの隙間Ｇのばらつきも大きく、耐久寿命も短
かくなった。The angle at which the cone is rotated depends on the variation in the spraying conditions, because the surface roughness after spraying becomes large.
360 ° or less may be stable. Further, in the step of FIG. 1 (c), the pressing surface pressure was set to 0, 5, 20, 35, 50, 70 N /
Synchronizer ring manufactured by changing to mm 2
As a result of an endurance test performed by assembling the gear transmission, when the pressing surface pressure was zero, that is, when the cone 7 was not pressed, the gap G between the gear and the gear greatly varied, and the durability life was shortened.

【００２１】押付面圧が、５、２０、３５Ｎ／ｍｍ2 の
場合は、ギアとの隙間Ｇのばらつきが小さく、耐久回数
は目標回数を何れも上廻った。押付面圧が５０、７０Ｎ
／ｍｍ2 の場合は、ギアとの隙間Ｇのばらさきは小さく
できたが、耐久寿命が劣り、結果は悪かった。When the pressing surface pressure was 5, 20, and 35 N / mm 2 , the variation in the gap G with the gear was small, and the number of endurance times exceeded the target number. Pressing surface pressure is 50, 70N
In the case of / mm 2, the dispersion of the gap G with the gear could be reduced, but the durability life was inferior and the result was poor.

【００２２】これらの結果をみると、一定以上の押付面
圧では溶射面の細かい凹凸がつぶされて、溶射面の突起
高さが均一にならされるため、ギアとのすき間Ｇのばら
つきが小さくなったと考えられる。According to these results, when the pressing surface pressure is more than a certain value, fine irregularities on the sprayed surface are crushed, and the projection height of the sprayed surface is made uniform, so that the variation of the clearance G with the gear is small. It is thought that it became.

【００２３】そして、押付面積が一定以上に大きい、５
０、７０Ｎ／ｍｍ2 では、溶射表面の突起先端の変形が
大きく、シンクロナイザリング作動時に、ギアの円錐面
７ａの表面にある油膜の排除が不十分となり、同期に必
要な摩擦係数が確保出来ないために、耐久試験では、短
時間のうちに不快なギア鳴りを発生した。The pressing area is larger than a certain value.
At 0 and 70 N / mm 2 , the tip of the projection on the thermal spraying surface is greatly deformed, and during the synchronizer ring operation, the oil film on the conical surface 7a of the gear is not sufficiently removed, and the friction coefficient required for synchronization cannot be secured. Therefore, in the durability test, unpleasant gear noise occurred within a short time.

【００２４】又円錐体を押し付けただけで回動しない場
合、図５の供試品Ｎｏ．１のデータに示すように、２７
０°回動した供試品Ｎｏ．４に比べ、耐久試験開始直後
に、溶射面の塑性変形を発生し、少ない耐久回数でギア
鳴りを発生した。これは、ギア円錐面７ａと接触するシ
ンクロナイザリング３の溶射円錐面３ａの凹凸の突起の
先端の高さのばらつきが大きいため、均一な当りになら
なくて、ごく一部の突起だけで接触し、この突起先端の
実質的な面圧が異常に大きくなったためと考えられる。In the case where the cone does not rotate just by pressing it, the sample No. shown in FIG. As shown in the data of FIG.
Specimen No. rotated by 0 ° As compared with No. 4, immediately after the start of the durability test, plastic deformation of the sprayed surface occurred, and gear noise occurred with a small number of durability tests. This is because the unevenness of the height of the projections of the projections of the conical surface 3a of the synchronizer ring 3 that comes into contact with the gear conical surface 7a has a large variation. It is considered that the substantial surface pressure at the tip of the projection became abnormally large.

【００２５】なお、図５の耐久試験に用いた供試品は、
同一種類について、各数個の試料を用い、ギアとのすき
間Ｇは、円周を等分して３箇所のすき間を測定しその平
均値を一個の試料についてのすき間とした。The specimens used in the durability test shown in FIG.
For the same type, several samples were used, and the gap G between the gear and the circumference was equally divided, and three gaps were measured, and the average value was defined as the gap for one sample.

【００２６】[0026]

【発明の効果】本発明によれば、溶射層にねじ形状を形
成する必要がないため、溶射粉末量が少なくてすみ、そ
の分材料費が少なくてすむ。又、円錐体の押付け回動に
より、溶射膜の突起の高い部分がつぶされて突起高さが
均一になるため、ギアとのすき間のばらつきが小さくな
り、ギアとのすき間が規格より小さすぎたり、大きすぎ
て、他部品と干渉する不良品が少なくなり、結果として
製造コストが低減できる。According to the present invention, since it is not necessary to form a screw shape in the sprayed layer, the amount of the sprayed powder can be reduced, and the material cost can be reduced accordingly. In addition, due to the pressing rotation of the cone, the high portion of the projection of the sprayed film is crushed and the projection height becomes uniform, so that the variation between the gear and the gear is reduced, and the clearance between the gear and the standard is too small. The number of defective products that are too large and interfere with other components is reduced, and as a result, manufacturing costs can be reduced.

【００２７】又、溶射膜表面の突起高さが均一になるた
め、ごく一部の高い突起だけが相手ギアの円錐面に接し
て面圧が局部的に大きくなり、塑性変形を起こすという
不具合が避けられる結果耐久寿命が向上する。Further, since the height of the projections on the surface of the sprayed film becomes uniform, only a part of the projections is in contact with the conical surface of the mating gear, the surface pressure is locally increased, and the plastic deformation is caused. As a result, the durability life is improved.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の製造方法を説明する一部縦断面図。FIG. 1 is a partial longitudinal sectional view illustrating a manufacturing method of the present invention.

【図２】本発明の製造方法の途中工程でのシンクロナイ
ザリングの円錐面の粗さ曲線。FIG. 2 is a roughness curve of a conical surface of a synchronizer ring in an intermediate step of the manufacturing method of the present invention.

【図３】本発明の製造方法によるシンクロナイザリング
の円錐面の粗さ曲線。FIG. 3 is a roughness curve of a conical surface of a synchronizer ring according to the manufacturing method of the present invention.

【図４】製造方法、特に円錐体治具による押付回動の角
度を変えたときの耐久寿命の試験結果を示す図。FIG. 4 is a view showing test results of a durability life when a manufacturing method, in particular, an angle of rotation of pressing by a conical jig is changed.

【図５】シンクロナイザリングの耐久回数とギアとの隙
間Ｇとの関係を示す線図。FIG. 5 is a diagram showing a relationship between the number of times of synchronizer ring durability and a gap G with a gear.

【図６】歯車変速機のシンクロナイザリング機構の縦断
面図。FIG. 6 is a longitudinal sectional view of a synchronizer ring mechanism of the gear transmission.

【図７】図３のＡ部拡大図。FIG. 7 is an enlarged view of a portion A in FIG. 3;

【図８】FIG. 8 プラトー率の説明図。Explanatory drawing of a plateau rate.

【符号の説明】[Explanation of symbols]

３ シンクロナイザリング本体 ３ａ 円錐面 ９ 円錐体治具 3 Synchronizer ring body 3a Conical surface 9 Conical jig

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 シンクロナイザリングの円錐面と、変速
ギアの円錐面とが接触して同期作用する歯車変速機のシ
ンクロナイザリングの製造工程において、機械加工され
たシンクロナイザリング本体の円錐面に、耐摩耗材を溶
射した後、所定の面圧が溶射面にかかるように所定の開
き角の円錐体治具を押し付けて回動することにより、溶
射膜表面の突起高さを均一にすることを特徴とするシン
クロナイザリングの製造方法。In a manufacturing process of a synchronizer ring of a gear transmission in which a conical surface of a synchronizer ring and a conical surface of a transmission gear come into contact with each other and synchronize with each other, a conical surface of a machined synchronizer ring main body is provided with a wear-resistant material. After spraying, a cone surface jig having a predetermined opening angle is pressed and rotated so that a predetermined surface pressure is applied to the sprayed surface, so that the projection height of the sprayed film surface is made uniform. Synchronizer ring manufacturing method. 【請求項２】 円錐体治具を押し付けて回動する角度を
４５°〜５９０°とした請求項１のシンクロナイザリン
グの製造方法。2. The method for manufacturing a synchronizer ring according to claim 1, wherein the angle at which the cone jig is pressed and rotated is 45 ° to 590 °. 【請求項３】 シンクロナイザリング本体の円錐面に耐
摩耗材を溶射し、かつ円錐体治具を押し付け回動した溶
射面の面粗度が、十点平均粗さで２２〜６７μｍＲｚで
かつプラトー率が１％〜４０％間の表面粗さが３５μｍ
であるシンクロナイザリング。3. The surface roughness of the sprayed surface, which is obtained by spraying a wear-resistant material onto the conical surface of the synchronizer ring body and pressing and rotating the conical jig, has a ten-point average roughness of 22 to 67 μm Rz and a plateau rate. 35 μm surface roughness between 1% and 40%
Synchronizer ring.
JP4128723A 1992-05-21 1992-05-21 Synchronizer ring and its manufacturing method Expired - Fee Related JP3004808B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP4128723A JP3004808B2 (en) 1992-05-21 1992-05-21 Synchronizer ring and its manufacturing method
US08/047,194 US5407043A (en) 1992-05-21 1993-04-16 Synchronizer ring and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4128723A JP3004808B2 (en) 1992-05-21 1992-05-21 Synchronizer ring and its manufacturing method

Publications (2)

Publication Number Publication Date
JPH05320861A JPH05320861A (en) 1993-12-07
JP3004808B2 true JP3004808B2 (en) 2000-01-31

Family

ID=14991850

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4128723A Expired - Fee Related JP3004808B2 (en) 1992-05-21 1992-05-21 Synchronizer ring and its manufacturing method

Country Status (2)

Country Link
US (1) US5407043A (en)
JP (1) JP3004808B2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE501269C2 (en) * 1993-05-05 1994-12-19 Volvo Penta Ab Transmission device, in particular reverse gear for boats
JP3317788B2 (en) * 1994-08-24 2002-08-26 株式会社エクセディ Method of assembling friction coupling part of clutch disk assembly and jig used for the method
JPH10306353A (en) * 1997-04-30 1998-11-17 Nippon Piston Ring Co Ltd Synchronizer ring
KR100346467B1 (en) * 1999-12-06 2002-07-27 현대자동차주식회사 Synchronizer ring and manufacturing method thereof
AT510943A1 (en) * 2011-01-13 2012-07-15 Miba Frictec Gmbh FRICTION MATERIAL
DE102015112322A1 (en) * 2015-07-28 2017-02-02 Hoerbiger Antriebstechnik Holding Gmbh Method for producing a synchronizer ring and synchronizer ring
DE102015118188A1 (en) * 2015-10-26 2017-04-27 Hoerbiger Antriebstechnik Holding Gmbh Process for producing a coupling body
US10578169B2 (en) * 2016-06-07 2020-03-03 Borgwarner, Inc. Reduced axial length increased capacity synchronizer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS557414A (en) * 1978-06-30 1980-01-19 Ricoh Co Ltd Automatic paper feeder of printing device
DE3412779C1 (en) * 1984-04-05 1985-11-07 Kolbenschmidt AG, 7107 Neckarsulm Method of making a synchronizer ring
BR8707665A (en) * 1986-04-16 1989-08-15 Zahnradfabrik Friedrichshafen SYNCHRONIZER RING
DE3637386C1 (en) * 1986-11-03 1987-09-24 Neuenstein Zahnradwerk Method and device for producing synchronization bodies in gearboxes of motor vehicles
US4874439A (en) * 1987-02-24 1989-10-17 Mitsubishi Kinzoku Kabushiki Kaisha Synchronizer ring in speed variator made of wear-resistant copper alloy having high strength and toughness
KR910002918B1 (en) * 1987-03-13 1991-05-10 미쯔비시마테리알 가부시기가이샤 Fe sintered alloy synchronizing ring for transmission
AT409098B (en) * 1989-03-30 2002-05-27 Miba Sintermetall Ag METHOD FOR PRODUCING A FRICTION RING FOR CLUTCHES OR BRAKES WITH A Sintered Friction Pad
JP2992373B2 (en) * 1991-06-21 1999-12-20 日本ピストンリング株式会社 Synchronizer ring

Also Published As

Publication number Publication date
JPH05320861A (en) 1993-12-07
US5407043A (en) 1995-04-18

Similar Documents

Publication Publication Date Title
EP0628740B1 (en) Composite materials and its manufacturing method
US5143192A (en) Friction clutch or friction brake
JP3004808B2 (en) Synchronizer ring and its manufacturing method
CN105537451B (en) Synchronization ring and component for synchrom esh transmission
JP2007177955A (en) Propeller shaft
DE3122522A1 (en) SYNCHRONIZING DEVICE FOR MOLDING CLUTCH COUPLINGS AND METHOD FOR PRODUCING SUCH A SYNCHRONIZING DEVICE
JP5252604B2 (en) Synchronous ring assembly and method for forming a friction lining of a synchronous ring
JPS59187114A (en) Synchronous ring in vehicle transmission device
US5900559A (en) Synchronizer ring
US2319740A (en) Method of making friction rings
US8034201B2 (en) Induction hardening method and jig used in induction hardening process
JP2000329159A (en) Synchronizer ring
US20090305797A1 (en) Method for forming hollow profiles
CN107061536B (en) A kind of transmission assembly using automatically controlled shift
WO2019003236A1 (en) Double structure synchronizer ring and method of manufacturing thereof
US6948598B2 (en) Brake drum for wet-type band brake drum and method for manufacturing the same
Barathi Raja Reduction in Synchronizer Ring Wear and Improving the Cone Torque Generation by Enhancing the Lapping Operation Using Statistical Technique
JP2005155703A (en) Conical clutch of synchronizer for transmission
JP7472633B2 (en) Workpiece support device
Barathi Raja et al. Experimental Investigation of Efficiency Enhancement of Manual Transmission Gearbox Synchronizer Rings for the Enrichment of Gearshift Quality
JP7008810B2 (en) Improved double and triple cone synchronizer
JP2681865B2 (en) Seal ring
JPH0359302B2 (en)
TACHIBANA et al. Effect of pretreatment by shotblasting prior to lubrication for cold forging
JP3054292B2 (en) Drive shaft and method of manufacturing the same

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees